Lock nut and washer



jam@ 24, 1924.,

` 1,499,039 w. B. UDART l LOCK NUT AND WASHER Filed Jan. 2. 1923 INVENTOR Willm LLCART www ATTORNEY Patented .lune 24, i924.

WILLIAM IB. UDART, F ROCHESTER, NEW YORK.

LOCK NUT AND VIASHER.

Application led January 2, 1923. Serial No. 610,168.

To all w/wm t may concern: gether. 0n the inner side of the cani 9 is 55 Be it known that I, VILLIAM B. Unklar, a formed a knife edge l0 which digs into the citizen of the United States, residing at threads of the bolt and holds the washer ochester, in the county of Monroe and and the nut 3 against turning.

5 State of New York, have invented certain In practice, the nut 8 is screwed onto the new and useful Improvements in Lock Nuts bolt to its proper position or to inake a suit- 60 and Washers, 0f which the folloxwing is Jable clamping effect. The washer 6 is then specification. put in place on the nut 3 and the nut 2 is The object of this invention is to provide then drawn down on the nf'asher 6. s the a new and improved forni of lock nut and nut 2 turns the spring washer 6 is conilock washer therefor. pressed and the washer is forced against 65 This and other objects of the invention the nut 3. The cani 9 is forced downward will be fully illustrated in the drawing, into the recess 5 and is also forced inward described in the specification and pointed against the bolt, biting into the bolt and out in the claims at the end thereof. holding both the washer and the lower nut In the drawings, against turning. lIhe upper nut is also 70 Figure l is a perspective view of one half held against turning by its engagement with of the upper nut, the nut being shown in the lug 8 on the spring washer and in this vertical section. way a very good locking edect is secured. Figure 2 1s a perspective view of the loch` l claim:

washer, l. A. nut lock comprising a nut having a 75 Figure 3 is a perspective view of one hait cani shaped recess therein sloping toward of the lower nut, the nut being shown in the bolt, a split washer having cam on vertical section. the lower end thereof adapted to engage Figure 4. is a plan view of the washer. with said recess and forced inwardly there- Figure 5 is a side elevation of the bolt by, a knife edge on the inside of said cani 80 partly broken away with the nuts and adapted to engage with the threads of the washer in place thereon, the nuts and washer bolt, a nut adapted to engage with the upper being shown in vertical section. end of said washer and force the washer 3o Figure G is a side elevation of the bolt down into engagement with the lower nut with the nuts and washer shown thereon in and yieldingly force said knife edge against 85 full. the threads of the bolt. In the drawings like reference numerals 2. A nut lock comprising a nut havin@v indicate like parts.

cam shaped reces-s therein sloping toward In the drawings, reference numeral l inthe bolt, a split spring washer having a cani dicates the bolt or stud and reference nunii on the lower end thereof integral therewith 90 eral 2 indicates the upper nut and indiand adapted to engage with said recess and Cates the lower nut. The nuts are standard forced inwardly thereby. a knife edge on the nuts except as hereinafter pointed out. @n inside of said cam adapted to engage with 40 the upper side of the lower nut is forli the threads of the bolt, a nut adapted to a cani shaped recess with the cani slopi engage with the upper end of said washer 95 downwardly and inwardly to the bolt, th and force the washer down into engagement threads of the nut being out away where with the lower nut, radial grooif'es on the they intersect with this recess. under side of said nut. a lug on the upper The split washer 6 is provided, one end end ofsaid washer with which grooves '7 of which is sprung up and has the said lug engages as the nut is turned, said 10o rounded lug 8 on the end thereof which is spring washer` being adapted to siniultane adapted to engage with the radial groove -lously lock said upper and said lower nut by which the upper nut 2 is loked against against rotation on the bolt at any desired irregular turning. On the other end of thc point of the periphery of the threads of the split washer is formed the cam 9 which enbolt. 105 gages with the recess 5 and by which it is In testimony whereof I affix my signature. forced forward against the bolt as it is.

forced down as the two nuts are drawn to- WILLIAM B. UDART. 

